Power supplies and batteries
In this chapter · 8 sections
- Common power sources
- Voltage regulators
- Batteries
- Charging lithium cells
- Power budget: how long will the battery last?
- Solar sizing (rule of thumb)
- Saving power
- Clean power and grounding
Most IoT failures are power failures: brownouts, noisy motors, dead batteries. Size your supply for the peak current, give motors their own supply, and for battery devices calculate the average current before you build.
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